Worked on upgrading the GitHub Copilot integration API for the apache/incubator-devlake repository, focusing on forward-compatibility and maintainability. The project involved updating to the latest Copilot API version, introducing a centralized API_VERSION constant to ensure consistent versioning, and implementing targeted tests to verify correct API usage. By enhancing test coverage and emphasizing regression protection, the work reduced the risk of runtime issues caused by API drift. The approach centered on backend development and API integration using Go, with a strong emphasis on testing practices to support smoother future updates and more reliable feature rollouts without addressing major bug fixes.